Microstructural Study of as-cast Fe-Si Alloys. Effect of Percentage of Silicon

  • PDF / 275,294 Bytes
  • 6 Pages / 432 x 648 pts Page_size
  • 94 Downloads / 149 Views

DOWNLOAD

REPORT


0LFURVWUXFWXUDO6WXG\RIDVFDVW)H6L$OOR\V(IIHFWRI3HUFHQWDJHRI6LOLFRQ  

0DUtD**RQ]iOH])-RVp$*DUFtD+$%DODQGUD9$UDQGD 'HSDUWDPHQWRGH,QJHQLHUtD0HWDO~UJLFD)DFXOWDGGH4XtPLFD8QLYHUVLGDG1DFLRQDO $XWyQRPDGH0p[LFR&LXGDG8QLYHUVLWDULDVQ&R\RDFiQ0p[LFR') (PDLOKDMSX#\DKRRFRPP[

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

173

‫ܥ‬ௌ ሺͳሻ ‫ܥ‬௅